基于COSMOS/Works的带式输送机传动滚筒的有限元分析

对输送机传动滚筒受力状况做了理论分析,运用有限元分析软件COSMOS/Works对传动滚筒进行了静力分析,得出滚筒在载荷作用下的应力和变形分布规律。分析结果表明,该传动滚筒的结构设计完全满足其强度、刚度要求。     

矿用带式输送机大扭矩传动滚筒的有限元分析

利用三维制图软件Pro/E创建带式输送机传动滚筒的三维模型,并应用有限元分析软件Abaqus对其进行静力学分析,得到其受力和变形情况。通过对此传动滚筒的建模、计算和校核,总结出应力、应变的分布规律,并根据计算结果提出了传动滚筒的结构设计要点。     

带式输送机传动滚筒的有限元分析

论文采用大型通用有限元分析软件ANSYS对西北煤机厂新设计的带式输送机传动筒体在正常运行情况及逆止情况两种工况下分别进行了三维有限元静力分析。分析结果表明，该传动滚筒的结构设计完全满足其静强度要求。     

基于ANSYS的带式输送机传动滚筒的有限元分析

介绍了带式输送机传动滚筒的结构,运用有限元分析软件ANSYS对传动滚筒进行实体建模,并进行静力分析,得出滚筒在载荷作用下的应力和变形分布规律。分析结果显示了传动滚筒在结构设计方面的缺陷,为滚筒的进一步优化设计提供了理论依据。     

矿用带式输送机传动滚筒结构有限元分析

采用有限元仿真方法对某型带式输送机传动滚筒进行静力学分析。首先采用UG建立传动滚筒的三维模型,对传动滚筒不同区域进行受力分析,将三维模型导入ANSYS Workbench中,划分网格,定义约束以及施加载荷并求解得到传动滚筒的应力云图,仿真结果显示传动滚筒结构设计合理,满足设计要求。     

带式输送机传动滚筒结构优化与仿真研究

为了实现传动滚筒减重目标，达到节约成本、提高传动效率的目的，对带式输送机选型设计后的标准传动滚筒进行了有限元分析；构建了带式输送机传动滚筒的有限元优化流程和有限元模型，结合近似函数建立优化数学模型，最后采用序列二次规划算法对数学模型进行求解。分析结果表明，在满足传动滚筒许用应力和位移的条件下，滚筒减重51.396 8 kg,达到预期目标。     

带式输送机传动滚筒的有限元分析及其优化设计

在三维CAD软件SolidWorks中创建带式输送机传动滚筒三维模型 ,然后用有限元分析软件COSMOS WORKS ,对其进行了静力分析 ,基本掌握了传动滚筒的受力和变形情况。并根据有限元计算结果 ,以滚筒壁厚优化设计为例 ,介绍了用有限元法进行传动滚筒优化设计的过程。     

传动滚筒焊接技术的研究

传动滚筒是带式输送机上的关键部件,其结构性能、可靠性和使用寿命直接影响着输送机的性能。根据传动滚筒的结构类型、材料属性和受力情况,利用ABAQUS对其进行了有限元分析,分别以1m、1.2m和1.4m传动滚筒为例,对带式输送机传动滚筒焊接位置进行了研究。结果表明:滚筒筒毂与筒体相连焊接位置控制在总长的12%～17%比较合理,为传动滚筒的设计提供了理论依据。     

驱动滚筒结构与工艺研究

正驱动滚筒作为带式输送机的主要传动部件,其承受较大的交变应力,合理的结构设计和规范的制造工艺是保证设备正常运行的必要条件。驱动滚筒主要有铸造和焊接2种结构,小型驱动滚筒采用焊接结构,其主要失效形式之一是轴与支撑板焊接处的焊缝开裂。针对焊缝开裂的问题,利用有限元软件对其进行数值模拟分析,根据仿真结果对驱动滚筒进行结构优化和制造工艺的改进,有效地解决了故障,保证了生产的稳定运行。1驱动滚筒的结构和受力分析驱动滚筒由转轴、滚筒、支撑板和端轴焊接而     

基于有限元法的带式输送机传动滚筒分析

传动滚筒作为带式输送机的关键部件,有效的结构分析方法能提高设计质量和降低生产成本。建立了带式输送机传动滚筒的有限元模型,基于有限元软件ABAQUS对传动滚筒结构的应力及变形进行分析,模拟结果表明该传动滚筒结构满足强度与刚度要求,并对传动滚筒承载形式及形变情况进行了讨论。     

Current situation and future trend of China rare earth luminescent material industry

<正>Rare earth luminescent material is one of the most important application sectors of rare earths.China enjoys the exceptional advantage to develop rare earth luminescent material for its abundant rare earth resources.After several decades'endeavor,China's rare earth luminescent material industry,headed by rare earth phosphor for lamp and LED and high efficient rare earth energy-saving light source,has been gradually developed into a scale industry.China has become a major production base of rare earth phosphor for lamps and rare earth     

China rare earth market review

正June 1~10,2014Rare earth market remained weak.Quoted price of rare earth products was similar to that in May.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,polishing powder and ceramic industries remained inactive.Demand from downstream industry was soft.Consumers purchased on their needs.Suppliers had strong intention to sell.Prices of rare earth products     

Annual Report analysis of Chinese rare earth-related listed companies in 2013

<正>Chinese rare earth-related listed companies have published their 2013 annual reports.It can be understood from their reports that production and operation activities of Chinese rare earth-related companies were still heavily affected by macro economy and industrial policies.They basically followed the steps of national economy.In 2013,world economy recovered slowly but the economy     

Market opportunities and challenges for rare earth polishing powder

正1.Status of rare earth polishing powder Rare earth polishing powder with high content of cerium oxide began to replace iron oxide for glass polishing and became one of the key materials in glass polishing process since 1940.Compared with traditional iron oxide,rare earth polishing powder has many advantages,such as fast polishing rate,high polishing quality and long service life.It can achieve good surface quality and improve operation conditions.For example,in lens polishing,the polishing work that cerium     

Baotou Research Institute of Rare Earths developed a new RE alloy preparation technology

正Pyrometallurgy Laboratory of Baotou Research Institute of Rare Earths had independently developed a new preparation technology of rare earth alloy for NdFeB.The alloy can remarkably enhance the coercivity of NdFeB magnet but also evidently reduce the production cost of the magnet.The new master alloy was prepared in the kA pilot-scale electrolytic cell by the independent technology.The rare earth master alloy can be used as the raw material for NdFeB.Compared     

矿用防爆轴流对旋主要通风机叶片ANSYS模态分析及应用

高效节能矿用防爆对旋主要通风机的叶片是主要通风机运行的关键部件,叶片在运行时不断受到气流的作用力,从而使叶片产生振动,当叶片振动的频率与叶片的固有频率接近时,容易产生共振从而导致叶片的断裂。一旦叶片断裂时,对主要通风机的安全运行产生致命的影响,从而导致矿山、化工等企业发生重大事故,将会产生不可估量的损失。基于有限元分析软件ANSYS,对高效节能矿用防爆轴流对旋主要通风机叶片进行模态分析及产生对应的六阶模态频率,对主要通风机叶片的运行频率、固有频率及产生的共振问题进行了原理分析,并且解决了叶片频率共振的问题,从而为主要通风机叶片结构设计提供理论依据,并对主要通风机叶片的安全运行提供保障。     

2013 NdFeB export analysis

<正>China totally exported nearly 24,000 tonsof NdFeB products during 201 3,including 18,825 tons of permanent magnet,valued USD 1.34 billion at an average price of 71.4 USD/kg;3,277 tons of NdFeB magnetic powder,valued USD 1 01 million at an average price of 30.9 USD/kg;1,334 tons of strip casting ribbon,with total export value of USD 74million at an average price of 55.3 USD/kg;and 586     

Market and recycling of NiMH battery

<正>Market status and future trend of NiMH battery1.Global market of small NiMH battery Global market size of small NiMH batteries declined year on year since 2011.The trend will continue to 2018,at the rate of 5%to 10%annually.Demand for small NiMH batteries will be stable gradually.Many electrical apparatuses are powered by the built-in lithium battery today,which is the main reason for the shrunk market of small NiMH batteries.But,for some products,small NiMH     

China rare earth market review

正September 1-10,2014 Affected by the National Day holiday,rare earth transaction was stagnant and the market showed a weak steady state.As there was no good news for downstream market,some products with flat demand would likely rally slightly for some time to     

唐口煤矿深部复杂开采工作面瓦斯分源涌出规律研究

研究工作面瓦斯涌出规律对工作面瓦斯治理有重要意义。为了得到唐口煤矿深部3号煤层复杂开采条件下工作面回采时期瓦斯涌出时空演化规律,选取6304工作面作为对象,采用实测方法研究6304工作面瓦斯涌出规律。结果表明:6304工作面瓦斯涌出量为6.534 m³/min,其中煤壁占34.27%,落煤占29.62%,采空区占36.11%;沿工作面倾向由低到高,瓦斯浓度整体为上升趋势,其中1—76号架工作面瓦斯浓度小于0.20%,76—102号架瓦斯浓度上升明显,最大为0.387%;上隅角的后部采空区是工作面的瓦斯主要涌出源,上隅角1号测点瓦斯浓度0.78%,上隅角周边3号、5号、7号、8号、9号测点瓦斯浓度平均为0.643%;周期来压时,上隅角瓦斯相对平时较高。研究为针对性的瓦斯分源监控与灾害防治提供基础。